The Pin-Rivet, cataloged under National Stock Number 5320-01-321-8766, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-321-8766 |
| Primary Part Number | HLT128-8-20 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Shank Diameter | 0.2797 INCHES MINIMUM AND 0.2807 INCHES MAXIMUM IN |
| Lubrication | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| Head Height | 0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN |
| Fastener Length | 1.675 INCHES MINIMUM AND 1.695 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OVERALL |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Grip Length | 1.245 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN |
| Width Between Flats | 0.0947 INCHES MINIMUM AND 0.0967 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.435 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| HLT128-8-20 | West Coast Aerospace, Inc. (USA) |
| HLT128-8-20 | Huck International, Inc (USA) |
| HLT128-8-20 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HLT128-8-20 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT128-8-20 | Howmet Global Fastening Systems Inc (USA) |
| HLT128-8-20 PRIMARY | Hi-Shear Corporation (USA) |
| HLT128-8-20 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| HLT128-8-20 | 5/9 Secondary reference U.S. Government activity |
| HLT128-8-20 | 5/9 Secondary reference U.S. Government activity |
NSN 5320-01-321-8766 is a Pin-Rivet, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-321-8766 has 7 manufacturer part numbers on file: HLT128-8-20 (West Coast Aerospace, Inc.), HLT128-8-20 (Huck International, Inc), HLT128-8-20 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HLT128-8-20 (Sps Technologies, Llc Dba PB Fasteners), HLT128-8-20 (Howmet Global Fastening Systems Inc) and 2 more.
Key specifications for HLT128-8-20: Shank Diameter: 0.2797 INCHES MINIMUM AND 0.2807 INCHES MAXIMUM IN; Lubrication: CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Head Height: 0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN; Fastener Length: 1.675 INCHES MINIMUM AND 1.695 INCHES MAXIMUM IN. 19 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.